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A Comparison of AC and DC Power Distribution in the Data Center

The quest for improved efficiency of data centers has encouraged a climate of innovation in data center power and cooling technologies. In the early 1990s, manufacturers and engineers have suggested a conversion of the data center power architecture to DC from the existing AC. Despite a predicted a widespread adoption of a DC standard for data center power and evidence that a change to DC distribution is advantageous, the usage of DC relative to AC has declined. Recently, new proposals have been made based on high voltage DC distribution. These methods overcome some of the earlier problems with DC power. However, The latest high efficiency AC and DC power distribution architectures are shown to have virtually the same efficiency, suggesting that a move to a DC-based architecture is unwarranted on the basis of efficiency.
* Identify the high efficiency power distribution options for AC and DC distribution systems * Explain the considerations for comparing distribution systems including * Cost * Compatibility * Reliability * Efficiency * Use an AC and DC data center efficiency comparison calculator * Recognize issues with past studies of AC and DC efficiency
Course Credits: This course has been approved by the IEEE for the following continuing education credit: Approved by IEEE for (0.1) CEU. To gain credit, send an email to stating course(s) completed and your IEEE membership number for a certificate to submit. This course has been approved by the US Green Building Council (USGBC) for the following continuing education credits: Approved by USGBC for (1) GBCI CE Hour for LEED Professionals Approved for (1) GBCI CE Hour Approved for (1) GBCI CE Hour for LEED Credentialing Maintenance Program (CMP) This course has been approved by American Hotel and Lodging Educational Institute (AHLEI) for the following recertification points: Certified Engineering Operations Executive (CEOE) for (1) point. This course has been approved by BOMI International for the following continuing education credit: Approved by BOMI for (1) CPD point. This course qualifies for Continuing Professional Development (CPD) credits for graduates of the RPA, FMA, and/or SMA designation programs by BOMI International, the Independent Institute for Property and Facility Management Education. This course has been approved by the Construction CPD Certification Service for the following continuing education credit: Approved by CPD for (1) CPD point The American Society for Healthcare Engineering (ASHE) has approved this course for continuing education credits. ASHE issues in quarter-hour increments, and this course qualifies for .50. The total of 10 contact hours equals 1 continuing education credit. Effective July 10, 2013 BICSI recognizes this training for the following BICSI ITS Continuing Education Credits (CECs): RCDD=1, RITP=1, DCDC=1, NTS=1, ITS Installer 2=1, ITS Installer 2 Copper=1, ITS Installer 2 Fiber=1, ITS Technician=1, Certified Trainer=1, BICSI ITS CECs=1
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Topic : Power

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